cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A240325 Number of n X 5 0..3 arrays with no element equal to zero plus the sum of elements to its left or zero plus the sum of elements above it or one plus the sum of the elements diagonally to its northwest, modulo 4.

Table of values

n a(n)
1 8
2 80
3 1677
4 21455
5 247187
6 3898804
7 43979526
8 602874070
9 8649395684
10 101952716878
11 1438937234148
12 19175029391887
13 237935384258519
14 3335405244297922
15 43049779553837333
16 556801688251633585

List of values

[8, 80, 1677, 21455, 247187, 3898804, 43979526, 602874070, 8649395684, 101952716878, 1438937234148, 19175029391887, 237935384258519, 3335405244297922, 43049779553837333, 556801688251633585]